Answer)
Of diffusion
Explanation)
Molecules move down a concentration gradient without the need to use energy. This means they move from a high concentration to a low concentration. This occurs across a semi- permeable membrane, like a cell membrane, by simple diffusion.
The adaptations in which the small intestine make for absorption is the presence of a finger-like structure called villi.
<h3>What is Villi?</h3>
These are finger-like structures found in the small intestine which increase the surface area for absorption.
They possess blood vessel which ensures the nutrients are transported to other parts of the body.
Read more about Villi here brainly.com/question/1293500
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Answer:
Cell membranes are semi-permeable, which works like a sieve that determines what enters and leaves the cells.
Explanation:
It is semi-permeable and it allows molecules to diffuse inside.
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Freeze-thaw, onion skin (exfoliation), chemical and biological weathering
Answer:
-The posterior pituitary does not secrete its hormones but acts as an extension of the hypothalamus, storing those hormones.
-The anterior pituitary secretes its hormones (predominantly tropic hormones).
Explanation:
